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1. (WO1997019264) THROTTLE VALVE BODY WITH A TAPERED CHANNEL ON ONE SIDE OF ITS AXIS AND A TAPERED FLAP ON THE OPPOSITE SIDE THEREOF
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/019264 International Application No.: PCT/FR1996/001822
Publication Date: 29.05.1997 International Filing Date: 19.11.1996
Chapter 2 Demand Filed: 18.03.1997
IPC:
F02D 9/10 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
D
CONTROLLING COMBUSTION ENGINES
9
Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
08
Throttle valves specially adapted therefor; Arrangements of such valves in conduits
10
having pivotally-mounted flaps
Applicants:
MAGNETI MARELLI FRANCE [FR/FR]; 19, rue Lavoisier F-92002 Nanterre Cédex, FR (AllExceptUS)
PONTOPPIDAN, Michaël [FR/FR]; FR (UsOnly)
SEMENCE, Pierre [FR/FR]; FR (UsOnly)
Inventors:
PONTOPPIDAN, Michaël; FR
SEMENCE, Pierre; FR
Agent:
BEROGIN, Francis ; Cabinet Plasseraud 84, rue d'Amsterdam F-75440 Paris Cédex 09, FR
Priority Data:
95/1388522.11.1995FR
Title (EN) THROTTLE VALVE BODY WITH A TAPERED CHANNEL ON ONE SIDE OF ITS AXIS AND A TAPERED FLAP ON THE OPPOSITE SIDE THEREOF
(FR) CORPS PAPILLON A CONDUIT DE FORME EVOLUTIVE D'UN COTE DE SON AXE ET PAPILLON DE FORME EVOLUTIVE DU COTE COMPLEMENTAIRE
Abstract:
(EN) A throttle valve body (1) including a flap (6) of which the side pivoting down or up on opening has a shoulder (17) on the flap surface facing upwards or downwards, respectively, defining a gradually widening cross-sectional area with the cylindrical (7) or frusto-conical (9) wall opposite the intake channel (3) through the housing (2). The side of the flap (6) which rotates up or down, respectively, on opening consists of a flat half disk of which the edge is moved, at first, opposite a tapered surface portion (14) with a complex shape to define a gradually widening cross-sectional area downstream from an inlet convergent (15, 12) and upstream from an outlet divergent, respectively. Said throttle valve body may be used in an internal combustion engine injection device.
(FR) Le corps papillon (1) comprend un papillon (6) dont le côté pivotant vers l'aval ou vers l'amont à l'ouverture porte, sur sa face amont, respectivement aval, un épaulement (17) définissant une section à ouverture progressive avec la paroi cylindrique (7) ou tronconique (9) en regard du conduit d'admission (3) traversant le boîtier (2). Le côté du papillon (6) tournant vers l'amont, respectivement vers l'aval, à l'ouverture est en forme de demi-disque plat dont la tranche se déplace, initialement, en regard d'une portion de surface évolutive (14) de forme complexe pour définir également une section d'ouverture progressive, en aval d'un convergent d'entrée (15, 12), respectivement en amont d'un divergent de sortie. Application aux corps papillon pour dispositif d'injection de moteur à combustion interne.
Designated States: BR, CN, US
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
ES2138387EP0862687US6047950CN1202951DE000069604084FR2741392